* {
  margin: 0;
  padding: 0;
}

#main {
  background: url(./images/background.png);
  width: 480px;
  height: 852px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  overflow: hidden;
  /* margin: 0 auto; */
}

#start {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  color: #fff;
  font-size: 50px;
  cursor: pointer;
  border: 4px solid rgba(0, 0, 0, 0.5);
  width: 50%;
  text-align: center;
  padding: 5px 10px 15px;
  z-index: 1;
}

#titleScore {
  position: absolute;
  top: 10px;
  left: 10px;
  font-size: 25px;
  font-weight: bold;
  color: white;
  z-index: 1;
}

#tips {
  font-size: 20px;
  color: black;
}